CN1251554C

CN1251554C - Telephone communication system over single telephone line

Info

Publication number: CN1251554C
Application number: CNB01809872XA
Authority: CN
Inventors: 耶胡达·宾德尔
Original assignee: SercoNet Ltd
Current assignee: Examine Vincent Zhi Cai management company
Priority date: 2000-04-18
Filing date: 2001-03-12
Publication date: 2006-04-12
Anticipated expiration: 2021-03-12
Also published as: AU2001241013A1; US7106721B1; US8559422B2; KR20080054444A; ES2457640T3; US20080232579A1; US7466722B2; US20060182095A1; US20080043646A1; US8000349B2; EP1277370B1; WO2001080595A1; CN1826017B; US8223800B2; KR100914117B1; US7397791B2; KR20070110452A; JP4664567B2; US20050117603A1; EP2117256A1

Abstract

An improved telephone system (10) over a single telephone line within a residence or other building is disclosed, supporting exchange features and enabling easy expansion for multiple external lines. The existing telephone wiring is used as the medium for a local data communication network, carrying mutiple voice channels. In each outlet (88a, 105a), one or more voice channels are converted into a standard telephone-line interface. Life-line functionality is facilitated by using the lower band of the spectrum isolated from the data communication network, and a dedicated connector (91) in the outlet provides access to this band. External telephone feeders (86a, 86b) are converted to digital form for interfacing to the in-home data communication network.

Description

Telephonic communication system on single telephone line

Technical field

The present invention relates to the telephone communication network field, more specifically say, relate on single telephone line, the telephone set in the building is connected to net.

Background technology

The demand that expands the telephone communication capacity indoors constantly increases.This demand is driven by two principal elements: use the growth of additional external circuit and indoors function of exchange such as two-party-line system growth of requirement.

Telephone wiring

Two or four lines are adopted in indoor telephone service usually, and insert by the phone lead-out wire, and telephone set is tapped into this lead-out wire.The draw wiring configuration of prior art telephone system 10 of Fig. 1 is used for dwelling house or other buildings, uses 5 wirings of Home Telephone line.Home Telephone line 5 comprises that the single line that is connected with junction box 16 is right, the junction box is connected to public switched telephone network (PSTN) 18 by cable 17a again, terminate in public's switch 19, this public's switch is set up and the conversation of realization from a phone to another phone.This paper " analog telephone " speech, be meant traditional simulation low frequency audio frequency voice signal, usually below 3KHz, sometimes be also referred to as " POTS " (" POTS plain ordinary telephone service "), and " phone " speech, generally be meant the telephone service of any kind of, comprise digital service, as Integrated Service Digital Network.This paper " high frequency " speech is meant any frequency that is higher than this analog telephone audio frequency basically, as is used for data frequency.The frequency that ISDN uses is no more than near 100KHz (energy concentrates on the 40KHz usually) usually.This paper " telephone wire " speech is meant the line of conduction, is mainly used in carrying and distributes analog telephone, and include but not limited to, such as the previous existing and current line that the conduction of analog telephony just is being provided in the building.This paper " telephone device " speech is that without stint refers to any telephone plant (comprising analog telephone and ISDN), and the device of any use telephone signal, as facsimile machine, voice modem, or the like.

Junction box 16 opens indoor circuit and PSTN branch, and is used as the test facilities of trouble hunting, and joins ew line indoors.A plurality of

phone

13a and 13b are connected with telephone wire 5 by multiplex telephony lead-out

wire

11a, 11b, 11c and 11d.Each lead-out wire has a connector (often being called " socket "), represents with 12a, 12b, 12c and 12d respectively in Fig. 1.In the North America, use RJ-11 usually.Each lead-out wire can be connected with telephone unit by connector (often being called " plug "), and connector (to two telephone unit 13a and the 13b that draws) in Fig. 1 is represented with 14a and 14b respectively.Should be pointed out that

line

5a, 5b, 5c, 5d and 5e are with the different sections of a pair of lead on electricity.

Though 10 on the network that draws shows series connection or chrysanthemum link topology, in this kind topology, wiring only is connected serially to another lead-out wire from a lead-out wire, also can use other topologys, as star, tree-like or any arbitrary topology.But the telephone wiring system of premises usually comprises the wiring medium: two or four copper cash, and for being connected the lead-out wire that direct access is provided with these lines.

The additional user line

Fig. 2 indoor telephone network 20 that draws wherein needs additional user line 17b is added on the existing line 17a.Additional wire 17b is to family junction box 16 from switch 18.In order to insert additional wire 17b, new lead-out wire 11e must be installed.In addition, new telephone wire 6a must be installed, route to lead-out wire 11e from junction box 16.In such facility, use cable 15c, through

connector

14c and 12e, telephone set 13c is connected with the subscribers feeder of interpolation.

In addition, new wiring 6a can connect up 5 with existing, and as a part that has wiring 5, uses identical route within the walls.In the case, perhaps need to install some new phone lead-out wires, perhaps need to replace existing each lead-out wire with two or more phone connectors.

In the above two kinds of cases, the new wiring of essential interpolation.The route of these wirings and installation had both been required great effort also expensive.Adding new wiring outside wall spends few, but not attractive in appearance.

In the building that four lines (two pairs) are installed, adding second subscribers feeder is quickly and easily.Existing second pair of wiring is used as second subscribers feeder, therefore needn't the additional wiring of route.But, when needs the 3rd or the 4th subscribers feeder, run into the problem that identical needs add wiring again.In general, no matter when, when certain family is added new subscribers feeder and surpassed existing wiring capacity, all need the wiring that adds.

The situation that Fig. 2 draws represents that to the subscribers feeder of each interpolation, the subscribers feeder of this interpolation all relates to the special-purpose wiring of use, moves this family to from switch.But new technology can make carrying multi-path voice channel (minor loop) on the single twisted pair.Specifically, can use Digital Subscriber Line (DSL) technology.For example, (integrated services digital network-basic rate inserts ISDN-BRA, be commonly referred to ISDN) can be on single twisted pair, two voice channels of carrying, HDSL (high bitrate digital subscriber line) supports up to 16 voice channels, and HDSL 2 supports up to 30 voice channels on single twisted pair.These and other such technology generally adopt two modulator-demodulators, are connected the two ends of twisted pair, shown in the network 30 of Fig. 3.Twisted pair 17 in the minor loop, at exchanger side and ETU exchange terminal unit 32 interfaces, this terminal unit 32 the minor loop line on, be sent to the remote-terminal unit 31 of the client's side that is positioned at cable.Remote-terminal unit 31 provides

subscriber line interface

17a and 17b again, is connected with junction box 16.In other configuration, voice channel is multiplexing in the digital stream of for example PCM highway, ATM or other buses.

Recently because deregulation gradually, the user can accept telephone service from the suppliers of non-traditional telephone operator.Example is the competitive company in the U.S..In addition, non-telephone service as cable TV and satellite-based Network Provider, is beginning to provide telephone service.Therefore, the client can select additional customer's line that different service suppliers provide.Fig. 4 draws and offers a kind of configuration of adopting telephone network 40 of this client.First telephone wire is provided by traditional telephone company shown in Figure 1, and the front illustrates.But second telephone wire is provided by non-original telephone provider, and this telephone wire is connected to non-telephone network 41.For example, this second telephone wire can be a cable television network.Voice channel provides by remote-terminal unit 42, and this remote-terminal unit 42 provides additional telephone wire 6a, and communicates by letter with non-telephone network 41.For example, remote-terminal unit 42 can be the part of top machine box or cable modem.

Commutativity

This paper " PABX type characteristic " speech, or its equivalent idiom are meant that the characteristic that has includes but not limited to following characteristic: maintenance/call pickup; Calling transfer between the handset; Conference telephone; From or be sent to the calling of central station switch; Ring on all handsets; Memory dialing; The memory dialing.Be to satisfy continuous growth to the telephone communication quantity required, towards the telephone system of dwelling house and equipment just in rapid expanding.A kind of special demand of many dwelling houses is selectable communication capacities between many telephone sets, and all these telephone sets all by the connection of single central station telephone wire, insert dwelling house.In addition, the demand of other care of residential customer is with professional like those PABXs (PABX) service class.But such existing switch of great majority requires " star " topology, and in this kind topology, all lead-out wires all are connected directly to switch.Though support this kind topology in some dwelling houses, most of buildings do not adopt this kind topology shown in Fig. 1 example.Under this kind situation, be difficult to adopt PABX, unless make an effort, wiring is revised as " star " topology.United States Patent (USP) 4,821,319,4,459,434,5,090,052,5,596,631,5,781,622, with 6,038,300, and other patents of pressing US patent class 379/177 and 379/363, a small amount of embodiment is disclosed, can be right with single line in dwelling house, realize limited function of exchange.

Data on the telephone wire

There is a kind of demand, wishes to use existing telephone infrastructure, the usefulness of power supply words simultaneously and data networking.Like this because additional wiring needn't be installed, simplified indoors or other buildings in set up the task of new local area network (LAN).Authorize a kind of method that on the two-wire telephone wire, forms LAN of United States Patent (USP) 4,766,402 (after this being called " Crane ") instruction of Crane, but telephone service is not provided.

Frequency division multiplexing (FDM) notion, this area is known, this notion provides a kind of device, the bandwidth of a lead carrying, be decomposed into can carrying analog telephone signal low-frequency band and the energy carry data is communicated by letter or the high frequency band of other signals.For example there is explanation in this kind mechanism in the United States Patent (USP) 4,785,448 (after this being called " Reichert ") of authorizing people such as Reichert.What be widely used in addition is xDSL system, basic asymmetrical digital subscriber ring (ADSL) system.

As another example of the relevant prior art in this area, be disclosed in the United States Patent (USP) 5,896,443 (after this being called " Dichter ") of authorizing Dichter.A kind of method and apparatus is used in the Dichter suggestion, and frequency division multiplexing (FDM) technology is used for residence telephone wiring, simultaneously carrying telephone signal and data traffic signals.The bandwidth of this wiring energy carrying is broken down into the low-frequency band of energy carrying analog telephone signal and the high frequency band of energy carry data signal of communication.In this kind mechanism, telephone service is unaffected, on the also existing simultaneously telephone wiring, provides its communication ability indoors.

The Dichter network is shown in Fig. 5, and the network 50 that draws on the figure both had been used for phone, and the local area network (LAN) of data cell also is provided.Data terminal equipment (DTE)

unit

24a, 24b and 24c by data communication equipment (DCE)

unit

23a, 23b and 23c, are connected with this local area network (LAN) respectively.The example of data communication equipment comprises modulator-demodulator, line driver, line receiver and transceiver (this paper " transceiver " speech is meant the combination of transmitter and receiver).

DCE unit

23a, 23b and 23c are connected to high pass filter (HPF) 22a, 22b and 22c respectively.These HPF can make the DCE unit insert the high frequency band of telephone wire 5 carryings.(do not draw among Fig. 5) in first embodiment,

phone

13a, 13b and 13c by

connector

14a, 14b and 14c, directly are connected with telephone wire 5 respectively.But, for fear of the interference of phone, (draw among Fig. 5) in a second embodiment to data network, low pass filter (LPF) 21a, 21b and 21c, add on

phone

13a, 13b and the 13c from telephone wire 5.In addition, also can be connected low pass filter with junction box 16, so as elimination from or reach the noise of PSTN wiring 17.Must be pointed out that

line

Other prior art patent in this area can find in US patent class 379/093.08, and this classification relates to and need not telephone wiring (as wiring and lead-out wire) is done any change, and on this telephone wiring carry data.United States Patent (USP) 5,841,360 and authorize the inventor's U.S. Patent application 09/123,486 and 09/357,379, be to advise changing telephone wiring first, by wiring being decomposed into different sections, each section is connected with two phone lead-out wires.Like this, network is changed into the section of the multistage ' point-to-point ' that can realize superior communication feature from ' bus ' topology.

The part of this kind network 60 is shown in Fig. 6, and this figure illustrates the lead-out wire 11 that replaces Fig. 1 with lead-out wire 31a and 31b.Telephone wiring 5 is decomposed into

different section

5a, 5b and 5c.The end of each line segment is with low pass filter (LPF) and high pass filter (HPF) coupling, so that telephone signal is separated with data-signal.As shown in Figure 6,

LPF

21b and 21c invest the opposite end of wire segment 5b respectively.The design of this LPF is wanted to allow telephone signal pass through, and is linked together, thereby provides continuous path for telephone signal.Telephone signal inserts by the connector 12a and the 12b of lead-out wire, and

telephone device

13a and 13b insert this lead-out

wire connector

12a and 12b by

connector

14a and 14b respectively.Therefore can abundant support telephony services.The data-signal of the high-end carrying of frequency spectrum inserts by HPF 22b and 22c, is coupled respectively to the opposite end of line segment 5b simultaneously.Filter 22a and 22d are connected to the end of

line segment

5a and 5c respectively.Each HPF is connected with modulator-demodulator 23, this modulator-demodulator signal that transmits and receive data on telephone wiring.Modulator-

demodulator

23a, 23b, 23c and 23d are connected to

HPF

22a, 22b, 22c and 22d respectively.

Data cell

24a and 24b are connected to lead-out

wire

31a and 31b respectively by the connector separately (not drawing in the drawings) of each lead-out wire.Each data cell is by separately DTE interface coupling in the lead-out wire.Lead-

out wire

31a and 31b comprise

DTE interface

29a and 29b respectively.Three data flow are arranged in each lead-out wire, and two one three data flow are handled respectively by

adapter

28a and 28b from DTE from each modulator-demodulator, and these adapters use for lead-out wire 31a and lead-out wire 31b respectively.Though among the embodiment of Fig. 6 explanation, the parts of all correlation functions all are contained in the lead-out wire, also other embodiment can be arranged, and wherein are used for the parts of these functions, have only some to be included in the lead-out wire.

Emergent line

Term " emergent line " speech is meant that telephone service is used for the basic purposes of urgent purpose.So, require the fault of any other system or business (as electric power), should not reduce the ability of telephone system.In fact be exactly expression, as long as the telephone set of work is connected with switch by two continuous lines, even power breakdown all should be kept telephone service.

Authorize the WO 9719533 of Depue, title is " Subscriber LineMultiplexer ", and the patent of announcing on May 29th, 1997, a kind of system has been described, be used for the connection of any standard analog terminal use telephone plant, as analog telephone, facsimile machine and simulation computer modulation-demodulation device, these equipment are a certain local use the in building at present, by the two-conductor line telephone wire connection of single routine.One main subscribers feeder multiplexer unit is placed on the position of the two-conductor line analog telephone subscribers feeder annex of close telephone service provider.The input of this master unit is the two-conductor line analog line of this telephone service provider of two-way.Then, multiplexing control signal, voice signal and data-signal, and on the two-conductor line telephone loop of indoor routine, to far professional transmission.

This system can be by this standard the two-wire telephone wiring, the multiplex telephony line is sent in the building separately telephone device.The system that WO 9719533 describes, requiring that a master unit, its effect are arranged is the interposition incoming call, to send signal from the unit, whether available to determine called line, if notify available from the unit, then take this line, so that incoming call is sent to suitable terminal use unit from central station.When doing like this, repeat bell signal (detecting by master unit at first) from the unit to the terminal use unit.The exhalation that the terminal use unit sends is routed external call line to needs by complimentary fashion.

Than the calling that a calling is the more lacked, route between multichannel outside line and a plurality of terminal uses unit does not have explanation to this simultaneously.In any case but WO 9719533 still requires by connection separately multi-route to be routed to from the unit, in Fig. 1 with Line 1, Line 2 ..., Line n represents.Therefore, previous existing wiring, have only master unit 18 with from the unit 34 interconnected marks 24 and 26 line to surplus depositing still.Master unit and from the effect of unit is by previous existing wiring facilities, the N route that is fed to master unit, is multiplexed with the N route of going up equal amount from unit output.About the incoming line of some quantity being transformed to the phone lead-out wire of lesser amt, WO 9719533 does not have content to relate to.

Have many such as family and the application minimized office chamber system, the expense that the equipment of this kind family or minimized office chamber system is installed, selling at exorbitant prices.This kind system for example comprises, there are some extensions, computer and facsimile machine in a small office, needs to use phone lead-out wire separately, by existing two-wire infrastructure route.In this case, each phone lead-out wire, normally the RJ-11 standard socket is not with the chrysanthemum on-link mode (OLM), is in the star like arrangement mode, entirely with same two-wire to being connected.

Therefore, recognize widely, be necessary that also extremely beneficial is, a kind of device of realizing indoor telephone system is provided, can be indoors to each telephone unit networking, and multichannel external user line is arranged, but need not to install extra line facility indoors.The present invention can satisfy this purpose.

Summary of the invention

The present invention disclose a kind of in building the improved telephone system on the single telephone line.Telephone wire in the building is used as the medium by the communication network of TDM (time-domain multiplexed) mode carrying multi-path voice channel.Can be with new wiring or previous existing telephone line.In each lead-out wire, carry out conversion between one or more data voice channel and the standard analog telephones signal (POTS) with a module.Commutativity noted earlier is by realizing with digital form route voice channel between lead-out wire.Signal from external call feeder line (being connected between the line in the central station of telephone service provider and the building) also can make it digitlization with a module, and in this communication network route.In view of the above, the analog telephone of standard equipment and signal thereof can pass through this module interface, and can use in the multi-voice channel net on single telephone line.

Can support two class communication networks.First kind of configuration keeps telephone wiring by common continuous arrangement, thereby forms network bus, and the module in each lead-out wire of this network has the modulator-demodulator of a single telephone line.Second kind of configuration, telephone wire blocks at each lead-out wire place, and telephone line modem and the coupling of each line end, thereby between the lead-out wire of every pair of connection, form the communication section of point-to-point.

Telephone wire is coupled to the module of telephony interface, or any parts of module, can be completely integrated in the lead-out wire, be partially integrated in the lead-out wire or externally configuration.

The function of emergent line by using passive filter, is divided into low-frequency band and high frequency band and realization easily available tape is wide.High frequency band is used by multi-voice channel communication net, and low-frequency band then is used for the analog telephony of carrying standard, need not any active parts.Under this kind situation, each lead-out wire can comprise one or more telephony interfaces of the voice channel of emergent line telephony interface and communication network carrying.

Therefore, the invention provides a kind of line module, be coupled to the wiring facilities in the building, described wiring facilities, comprise at least two leads and carrying numerical data, described numerical data comprises at least one time-domain multiplexed digitized speech channel, and described line module comprises:

At least one port is coupled to these at least two leads of described wiring facilities to this line module,

At least one telephone line modem separately, each is coupled to this at least one port, so that and digital data interface,

Be coupled to the multiplexer of this at least one telephone line modem, so that from numerical data, select one or more digitized speech channels,

At least one is coupled to the subscriber line interface of this multiplexer, and each interface is the digitized speech channel separately of multiplexer output, be converted to separately telephone signal and

At least one telephony port, each port is coupled to telephone signal separately, so that be coupled to telephone device;

Be characterised in that:

This multiplexer switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all routes to telephony port corresponding in the line module.

Having, according to the present invention, is according to the wiring facilities in the building again, a kind of telephonic communication system is provided, and described wiring facilities comprises the lead of at least two carrying numerical datas, described numerical data comprises at least one time-domain multiplexed digitized speech channel, and described telephonic communication system comprises:

In the unit of switch one side, between the telephone loop of one or more carrying analog telephone signal that telephone service provider provides, be coupled, the unit of this exchanger side can be converted to numerical data to this analog telephone signal;

Be characterised in that:

At least one line module is coupled between described wiring facilities and at least one phone lead-out wire, so as to be coupled to telephone device and

Each of this at least one line module, comprise a multiplexer, this multiplexer switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all routes to telephony port corresponding in the line module.

In addition, according to the present invention, kit also is provided, upgrade method for existing wiring facilities in the building is used, so that in described wiring, and the more voice channel of carrying, and need not modification or expand this wiring facilities, described voice channel is digitized, and transmits with time-domain multiplexed in this wiring, and this method comprises:

(a) between described wiring and at least one telephone loop, connect Switching Module, so that, be converted to corresponding digital time-domain multiplexed channel, by this wiring carrying described at least one telephone loop signal;

(b) connect one or more line modules, each module is in described wiring and can be coupled between at least one phone lead-out wire of telephone device, and during work, each line module is the digitlization time-domain multiplexed channel of one or more carryings in wiring, be converted at least one telephone signal

Be characterised in that:

One multiplexer is provided in each line module, this multiplexer switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all route to telephony port corresponding in the line module.

Description of drawings

At this only by way of example,, the present invention is described with reference to accompanying drawing, wherein:

Fig. 1 represents the telephone wire wiring configuration of general prior art in dwelling house or other buildings.

Fig. 2 represents the two-wire telephone wiring configuration of prior art in dwelling house or other buildings.

Fig. 3 represents to provide to dwelling house or other buildings the telephone network of multi-thread first kind of prior art.

Fig. 4 represents to provide to dwelling house or other buildings the telephone network of multi-thread second kind of prior art.

Fig. 5 represents first kind of prior art local area network (LAN) according to the telephone wire wiring of dwelling house or other buildings.

Fig. 6 represents the second kind of prior art local area network (LAN) of part according to the telephone wire wiring of dwelling house or other buildings.

Fig. 7 represents the module according to first embodiment of the invention.

Fig. 8 represents the telephone network according to first embodiment of the invention.

Fig. 9 represents the module according to first embodiment of the invention, and this module has the ability of supporting emergent line.

Figure 10 represents the telephone network according to first embodiment of the invention, and this telephone network also has the ability of supporting emergent line.

Figure 11 represents the module according to second embodiment of the invention, and this module has the ability of supporting emergent line.

Figure 12 represents the telephone network according to second embodiment of the invention, and this telephone network also has the ability of supporting emergent line.

Figure 13 represents kit, is used to make existing phone facility upgrading, supports system of the present invention.

Embodiment

To network of the present invention,, be appreciated that its principle and operation by reaching the description of the drawings with reference to the accompanying drawings.Accompanying drawing and explanation only are conceptual.During actual the realization, single parts can be realized one or more functions; In addition, every kind of function can realize with a plurality of parts and circuit.In accompanying drawing and explanation, identical reference number is represented different embodiment or the total parts of configuration.

First embodiment of the invention is based on an adaptor module (this postscript is made " line module "), and this module can make the telephone set of standard be connected with data communication network on telephone wire.The draw function of module 70 of Fig. 7.Module 70 has two ports: one is used for being connected with telephone wire, and another is used for being connected with one one or multi-section telephone set.On telephone wire, this module is by telephone line modem 23, and with the data communication network interface, this modulator-demodulator can use DCE 23a as at Dichter network 50 (Fig. 5).Data communication network carrying multi-path digitalization (as PCM) voice channel.Add-drop multiplexer 71 is to packing into the digital data stream from data communication network and extracting voice channel.The voice channel that module 70 is handled is by a logic, control and 73 management of PBX unit.Each voice channel is converted to single telephony interface (POTS) by subscriber line interface 72a, and subscriber line interface is converted to analog interface to the digital voice channel flow, can be connected with standard telephone set through connector 12.For the ease of second phone is connected to module 70, adds another subscriber line interface 72b, and be coupled to multiplexer 71 and logic, control and PBX unit 73.Subscriber line interface 72b also handles additional different voice channel.Additional telephone set can be connected to subscriber line interface 72b by connector 15.Though the module 70 that illustrates has the two-route wire by connector 12 and 15, provides support to subscriber line interface 72a and 72b respectively, same arrangement also can be used for single line interface, and single line interface has omitted subscriber line interface 72b and connector 15.Obviously, module 70 also can be supported more than two these class interfaces, but increase each this class interface, requirement interpolation subscribers feeder and connector, and the corresponding support of add-drop multiplexer 71.

Module 70 also can comprise additional logic, control, processing, storage and power supply.Remove handle by unit 73 as equipment such as logic, control and PBX abilities outside, these additional functions are carried out by the miscellaneous part that Fig. 7 does not draw.

The present invention's first network implementation example is based on the Dichter network.The network 80 that Fig. 8 draws is with module, is the basis as module 70 (Fig. 7), and each module can make single telephone set by connector 12 interfaces among the figure.Each such module 70 is contained in fully and is integrated in the phone lead-out wire, and as lead-out wire 88a, 88b, 88c and 88d, telephone line modem 23 is connected with the telephone line port of lead-out wire, and phone connector is connected to telephone set.

As shown in Figure 8, the formation of data communication network, want to make the telephone line modem (as telephone line modem 23) in each lead-out wire (as lead-out wire 88a, 88b, 88c and 88d), can be with telephone wire 5a, 5b, 5c, 5d and 5e as the network media, networking between each lead-out wire.Therefore, phone 13a and 13b can be in the communications of carrying out on the data communication network between them (as intercom).For ease of being connected, must add module 85 with the external electric phone network.Module 85 is on telephone wire, external call line and indoor data communication network bridge joint.To 86a and 86b, with two-way external call line interface, line can be the part of PSTN net shown in Figure 2 to 86a and 86b to network 80, perhaps from aforesaid other outside sources by line.Outside line 86a and 86b are converted to digital stream by switched line interface 81a and 81b respectively.Voice channel is coupled to add-drop multiplexer 82, and this add-drop multiplexer inserts the digital multiplexing data flow to voice channel, or extracts voice channel from the digital multiplexing data flow.Multiplexed data flow is coupled to telephone line modem 83, and this modulator-demodulator is communicated by letter with indoor data network through cable 84.

Though network 80 has been described outside feeder line 86a of two-way and 86b are arranged, obvious, also can be with single such feeder line.For example, if only use line 86a, then do not need switched line interface 81b.In addition, also can use more than the such feeder line of two-way.To the feeder line of each increase, must assemble additional switched line interface, and the additional tenability of add-drop multiplexer 82.

Realize network 80 at premises, require to use lead-out wire of the present invention,, replace the phone lead-out wire, as lead-out wire 11a (Fig. 1) as respectively comprising the lead-out wire 88a (Fig. 8) of a module such as module 70 (Fig. 7).At this moment,

line segment

5a, 5b, 5c, 5d and 5e, each is corresponding to the single twisted pair that is connected to telephone line modem among Fig. 7, and lead-out wire 88a, 88b, 88c and 88d are connected with each line segment with bus topology.In addition, also must near junction box 16, the module as module 85 be installed.But, need not in the building to install or line that route is new.After premises is installed network 80, commutativity and can both play a role the ability of two-way or multichannel external call line interface.

Module 70 and module 85 all include source block.Therefore, when any parts emergent power loss or the loss of power accident, network 80 may not provide telephone service.So, in order to support " emergent line " ability, the parts that module need be added.The module 90 that Fig. 9 draws and revised, this module can provide emergent line ability.High pass filter (HPF) 22 and low pass filter (LPF) 21, said as Dichter, be the phone spectral decomposition low-frequency band of carrying standard analog signal and the high frequency band that is used for data communication network.21 of LPF use passive component, and direct and connector 91 couplings.Therefore, insert the telephone set of connector 91, " emergent line " function can be provided, in its signal path without any active parts.Module 90 can only have effect to emergent wiring connector 91, also can be added on emergent wiring connector 91 on connector 12 and 15.In addition, in other embodiments of the invention, module can be fully need not " emergent line " connector 91.

Figure 10 is according to first embodiment of the invention, the network 100 that draws, and show that bright modification network makes it to support the feature of emergent line function.Network 100 comprises module 90a, 90b, 90c and 90d, is integrated in respectively in lead-out wire 105a, 105b, 105c and the 105d.Should be pointed out that the module 90 that is integrated in the lead-out wire 105, be not drawn in the figure specially.Here same, line segment 5a, 5b, 5c, 5d and 5e, each is corresponding to the single twisted pair of the wiring that is connected to low pass filter 21 and high pass filter 22 among Fig. 9, and each lead-out wire 105a, 105b, 105c and 105d are connected with each line segment with bus topology.Lead-out wire 105a, 105c and 105d have connector 12a, 12c and 12d respectively, and these connectors are according to the voice signal of data communication network carrying, the supporting telephone interface.But lead-out wire 105b also has connector 91, and this connector provides emergent line to connect as shown in Figure 9.The low-frequency band carrying of frequency spectrum is from the POTS signal of telephone wire 17, and telephone wire 17 is connected with indoor net through LPF 21.Therefore, telephone set 13b directly is connected with line 17, thereby emergent line service is provided.The high frequency band of frequency spectrum is used for data communication network, and is connected with extraneous by HPF 22.LPF 21 is connected with junction box 16 with cable 102 with HPF 22 boths.All parts for outer line interface uses all are included in the module 101.In another embodiment of the present invention, each lead-out wire (as lead-out wire 105a, 105b, 105c and 105d) also provides emergent line interface 91 except that at least one telephony interface 12 is arranged, so, in all lead-out wires of premises, can insert with emergent line.

Though the module 90 that Figure 10 draws is completely integrated in the lead-out wire 105, various embodiments of the present invention also comprise module are placed on the outer embodiment of lead-out wire.Equally, can select to be integrated in the modular unit in the lead-out wire and other parts are stayed the outside.Certainly, in all situations, need the suitable electricity of module and lead-out wire intercropping with being connected of machinery.

According to lead-out wire of the present invention, the lead-out wire with standard has similar size, shape and whole outward appearance physically, so such lead-out wire can replace the standard lead-out wire in the building wall.Do not need any change is done in whole telephone wire configuration and configuration.

So far, though it is according to the Dichter topology that data communication network of the present invention has been described, but the present invention can be used in the network topology of prior art shown in Figure 6 wiring equally, this kind network topology, be based on any line of connecting lead-out wire between the data communication of point-to-point.Figure 11 draws and supports the module 110 of this kind network, with and emergent line characteristic.The module 90 of one general configuration and Fig. 9 explanation is similar.But, the line of each phone line segment of point-to-point configuration has a high pass filter (as HPF 22a and HPF 22b), a low pass filter (as LPF 21a and LPF 21b) and a telephone for special use line modem (as modulator-demodulator 23a and modulator-demodulator 23b).Add-drop multiplexer 111 inserts voice channel the data flow of two telephone line modem 23a and 23b processing and extract voice channel from the data flow of these two telephone line modem 23a and 23b processing.But the obsolete voice channel of module then is routed to other modules.In the situation that three sections line segments connect, need to add this group parts.LPF 21a and LPF 21b provide the direct access to the low-frequency band of frequency spectrum, and are connected with emergent wiring connector 91 altogether.If do not need emergent line support, then filter 21a, 21b, 22a and 22b, and connector 91 can save.Logic, control, PBX and miscellaneous part such as power supply do not draw on Figure 11.These parts can provide additional ability, are used for management such as tasks such as data processing and protocol conversions.

The network 120 that Figure 12 draws and utilizes module 110.Each lead-out wire as lead-

out wire

115a, 115b, 115c and 115d, comprises the module as module 110 (Figure 11).But, the line segment 5a of this moment is corresponding to the single twisted pair of the wiring that is connected to low pass filter 21a and high pass filter 22a among Figure 11, and line segment 5b is corresponding to the single twisted pair of the wiring that is connected to low pass filter 21b and high pass filter 22b among Figure 11.Similarly, line segment (5b, 5c), (5c, 5d) and (5d, 5e), respectively be connected to lead-

out wire

115b, 115c and 115d, lead-

out wire

115b, 115c and 115d, corresponding to separately twisted pair among Figure 11, these twisted pairs are connected to the wiring of low pass filter 21a and high pass filter 22a and the wiring of low pass filter 21b and high pass filter 22b respectively.In general, the network configuration that has kept network 100 (Figure 10).But in this kind configuration, lead-

out wire

115a, 115b, 115c and 115d are connected with each line segment with point-to-point (or chrysanthemum link) topology.

The kit of upgrading usefulness

The present invention also provides the kit of existing phone facility upgrading, to support the network of this paper explanation.The draw embodiment of this kit of Figure 13, this kit comprises lead-out wire 132, lead-out wire 134 and installation guide 136.Lead-out wire 132 has the line 144 that is coupled to telephone wire and is used to be installed into the building wall interior strong point such as bead 146.Lead-out wire 132 also has socket 138 and socket 140.First socket is supported emergent line telephone service by connector 91 (Fig. 9), and then a socket then provides telephone service with improved commutativity.In lead-out wire 132, have one according to module of the present invention, this module illustrates and is drawn in Fig. 9 or Figure 11 in front.Similarly, in one embodiment of the invention, socket 138 is telephone jacks.In another embodiment, socket 140 is data jack.The kit embodiment that Figure 13 draws has two lead-out wires, i.e. lead-out wire 132 and lead-out wire 134, draw on the figure be basically complete with.But in other embodiments, kit only comprises lead-out wire 132.In different embodiment, also has other variation.Similar with aforementioned modules, additional parts and ability can be provided, be used for management such as tasks such as data processing and protocol conversions.

The present invention also provides a kind of method, is used for the phone facility upgrading of a previous existing route in building, to support the network of this paper explanation.This method comprises:

(a) provide described lead-out wire with described telephone line modem, described subscriber line interface and described add-drop multiplexer.

In another embodiment of the present invention, existing facility can be upgraded, to support emergent line communication.In the case, also have additional step as follows:

(b) provide passive high pass and low pass filter, be used for high frequency band, separate the lower band that uses for standard analog telephones from multiplexing voice channel;

(c) connect these filters, so that the analog telephony of standard and multiplexing voice channel isolation; With

(d) provide a connector, the telephone set of standard is connected with the analog telephony of standard.

Though the present invention is illustrated with the embodiment of limited quantity, obviously can also do many variations, modification and other application to the present invention.

Therefore, for example,, obviously the present invention is not applied this kind restriction, and the present invention can be used for non-family house equally, as office, workshop, and so on though the present invention specifically is illustrated with reference to the network that is installed in home dwelling.

Claims

One kind be used for building in the line module (70,85,90,101,110) of wiring facilities (10) coupling, described wiring facilities comprises at least two leads (5) and carrying numerical data, described numerical data comprises at least one time-domain multiplexed digitized speech channel, and described line module comprises:

At least one port is coupled to these at least two leads of described wiring facilities to this line module,

At least one separately telephone line modem (23,23a, 23b), each is coupled to this at least one port, so that and digital data interface,

Be coupled to the multiplexer (71) of this at least one telephone line modem (23a, 23b), so that from numerical data, select one or more digitized speech channels,

At least one is coupled to the subscriber line interface (72a, 72b) of this multiplexer, each interface the digitized speech channel switch separately of multiplexer output be separately telephone signal and

At least one telephony port (12,15), each port is coupled to telephone signal separately, so that be coupled to telephone device (13a, 13b);

It is characterized in that:

This multiplexer (71) switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all routes to telephony port corresponding in the line module.
2. according to the line module of claim 1, it is characterized in that part is included within the lead-out wire (88a, 105a).
3. according to the line module of claim 1, it is characterized in that, be completely contained within the lead-out wire (88a, 105a).
4. according to the line module of claim 2 or 3, it is characterized in that described wiring facilities is a telephone wiring.
5. according to the line module of claim 2 or 3, it is characterized in that described wiring facilities is a telephone wiring, and this lead-out wire is the phone lead-out wire.
6. according to the line module of claim 4 or 5, it is characterized in that, comprise at least one telephone line modem (23a, 23b, 23c, 23d).
7. according to the line module of claim 1, it is characterized in that described time-domain multiplexed is used PCM.
8. according to the line module of claim 1, it is characterized in that, can also be used for data processing.
9. according to the line module of claim 1, it is characterized in that, can also be used for protocol conversion.
10. according to the line module of claim 1, it is characterized in that, can also be used to support emergent line, wherein said wiring facilities can be used for carrying at least the first and second frequency bands, the analog telephone signal of described first frequency band energy carrying standard, the described time-domain multiplexed digitized speech of described second frequency band energy carrying channel, this module also comprises at least one passive filter (21,22), be used for second frequency band is separated with first frequency band, this module also has an interface (91) that leads to emergent line analog telephone unit, this analog telephone unit and at least one passive filter (21,22) coupling.
11. the line module according to claim 1 is characterized in that, is the part of the kit of previous existing wiring facilities upgrading, so that make a plurality of voice channels of this wiring carrying.
12. the line module (110) according to claim 1 is characterized in that, comprising:

At least two ports, each port line module be coupled to described wiring facilities different separately the section (5a, 5b, 5c, 5d, 5e) and

At least two telephone line modems (23,23a, 23b) separately respectively are coupled to a port separately, so that and digital data interface;

Thereby can make a plurality of line modules (115a, 115b, 115c, 115d),, connect by daisy-chain configuration, so that, be sent to line module separately different time-domain multiplexed digitlization channels by different wire segment.
13. telephonic communication system based on wiring facilities in the building (10), described wiring facilities comprises the lead (5) of at least two carrying numerical datas, described numerical data comprises at least one time-domain multiplexed digitized speech channel, and described telephonic communication system comprises:

The unit (85) of switch one side, coupling between the telephone loop (86a, 86b) of one or more carrying analog telephone signal that telephone service provider provides, the unit of this exchanger side can be converted to numerical data to this analog telephone signal;

It is characterized in that:

According to each at least one line module (70,88) of claim 1 to 12, coupling between described wiring facilities and at least one phone lead-out wire (12,15) so that be coupled to telephone device (13a, 13b) and

Each of this at least one line module comprises a multiplexer (71), this multiplexer switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all route to telephony port corresponding in the line module.
14. the system according to claim 13 is characterized in that, connecting up to small part is previous existing wiring.
15. the system according to claim 13 is characterized in that, connecting up to small part is the wiring that can be used for phone.
16. the system according to claim 13 is characterized in that, at least one line module partly is included in the lead-out wire separately.
17. the system according to claim 16 is characterized in that, this lead-out wire is the phone lead-out wire.
18. the system according to claim 13 is characterized in that, at least one line module is completely contained in the lead-out wire separately.
19. the system according to claim 13 is characterized in that, at least one line module is completely contained in the phone lead-out wire separately.
20. the system according to claim 13 is characterized in that, described time-domain multiplexed is used PCM.
21. the system according to claim 13 is characterized in that, can also be used for data processing.
22. the system according to claim 13 is characterized in that, can also be used for protocol conversion.
23. system according to claim 13, it is characterized in that, can also be used to support emergent line, wherein said wiring facilities energy carrying at least the first and second frequency bands, the analog telephone signal of described first frequency band energy carrying standard, the described time-domain multiplexed digitized speech of described second frequency band energy carrying channel, this unit also comprises at least one passive filter (21,22), so that first frequency band is separated with second frequency band, this line module also has an interface (91) that leads to emergent line analog telephone unit, this analog telephone unit and at least one passive filter (21,22) coupling.
24. the system according to claim 13 is characterized in that, uses two or more line modules.
25. the system according to claim 24 is characterized in that, line module connect by daisy-chain configuration.
26. the system according to claim 13 is characterized in that, can be used to carry out the PBX function.
27. the system according to claim 13 is characterized in that, can also be used as two-party-line system.
28. a method that makes existing wiring facilities (5) upgrading in the building, so that can be in described wiring, the more voice channel of carrying, and need not modification or expand this wiring facilities, described voice channel is digitized, and transmits with time-domain multiplexed in this wiring, and this method comprises:

(a) between described wiring and at least one telephone loop (86a, 86b), be connected Switching Module (85), to described at least one telephone loop conversion of signals so that be corresponding digital time-domain multiplexed channel, by this wiring carrying;

(b) connect one or more line modules (70,88), each module is in described wiring and can be coupled between at least one phone lead-out wire of telephone device, during work, each line module is the digitlization time-domain multiplexed channel of carrying in one or more wirings, be converted at least one telephone signal

It is characterized in that:

(c) in each line module, provide a multiplexer (71), this multiplexer switches between one or more digitized speech channels and one or more telephony port, and need not all time-domain multiplexed voice channels in the numerical data, all route to telephony port corresponding in the line module.
29. the method according to claim 28 is characterized in that, at least two line modules are connected to wiring facilities.
30. the method according to claim 29 is characterized in that, described line module is by wiring facilities section separately, connects by daisy-chain configuration.
31. the method according to claim 28 is characterized in that, also comprises protocol conversion steps.
32. the method according to claim 28 is characterized in that, also comprises:

(a) passive filtering between at least the first and second frequency bands, described first frequency band can the non-TDM analog telephone signals of carrying, described second frequency band can carrying described time-domain multiplexed digitized speech channel and

(b), transmit emergent line analog telephone unit by non-TDM analog telephone signal.